Scanned documents · upload limits · zero-trust
Fit any scanned PDF under strict upload caps.
Government and visa portals cap uploads at 2 MB or 5 MB. Don’t hand sensitive IDs or contracts to cloud compression websites. Underlimit turns 30 MB scans into crisp, 1 MB PDFs using 1984 fax compression — 100% in your browser, zero data uploaded.
Drop a PDF here
or choose a file — scanned documents, any number of pages
Nothing is uploaded · works offline once loaded
Advanced
Never go below this to hit the limit. Lower it only if a file refuses to fit.
Auto measures each page and sends ink-on-paper down the black & white path, photographs down the grey or colour path.
Page count, page order and page size come out exactly as they went in, so stamps and signatures stay where they were placed. Nothing is added to the file — no metadata, no text layer.
Every page, measured for real
Each page is rendered here and encoded every way it could be sent, so the size you see is the size you download.
Text pages away from photos
A scan of typed paper only needs black and white. A photograph needs grey or colour. Treating them alike wastes the budget.
Down to the limit, then stop
Uneven lighting is flattened, then the page is reduced to ink and paper and packed with Group 4 — the compression fax machines use for exactly this.
Nothing silently dropped
If the limit can't be met above your resolution floor, it says so and shows the closest fit instead of quietly wrecking the document.